Agreed on the action, karstopo. I tie so I probably won't be doing this, and rarely do things to exactly imitate for the reason you said. Mainly just thought it was interesting and maybe if a person doesn't have any kind of tying stuff. I didn't think it was necessarily meant to be fly cast but you probably could.
I made three and the first two looked like shrimp that had "issues" and may not draw a bite and the other looks too good to throw! LOL I haven't tried to throw any of them yet but I will most likely use a #2 salt water hook and that weight alone should make it sink slow enough when it hits the water as the inside is hollow and it take s a second or two to fill and sink. Like I said, I haven't tried it but it looks like it will catch a fisherman so it HAS to catch a fish as well!